Servo Motor Arduino

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Transcript of Servo Motor Arduino

SERVO ARDUINO MOTOR Servo History Motor The word Servo Motor "slave motor". "Le Servomoteur" or the comes from the French phrase The first known record of its use was by JJL Farcot in 1868 to describe steam engines and hydraulics for use in steering a ship. from the meaning of .Greek word "slave". People want to make "servo organization”into a docile tool, so as to subject to the requirements of control signal The origin of servo motor A servo motor is a motor which forms part of a servomechanism. It is paired with some type of encoder to provide position/speed feedback. This feedback loop is used to provide precise control of the mechanical degree of freedom driven by the motor A Servo is a small device that has an output shaft. This shaft can be positioned to specific angular positions by sending the servo a coded signal radio controlled airplanes radio controlled carspuppetsrobots. In practice, servos A feedback system that consists of a sensing element, amplifier, and servomotor, used in the automatic control of a mechanical device Servo mechanism Physical Properties of a Servo Motor A Servo Motor consists of three major parts: a motor, control board, and potentiometer (variable resistor) connected to the output shaft Servo Types Motor 2 types of Servo Motors: Rotary and Linear The three types of Rotary Servo Motors are: AC Servo Motor, Brush DC Servo Motor, and Brushless DC Servo Motor Rotary Servo Motor The motion of a rotary Servo Motor is often converted into linear motion by the use of a screw thread (ball screw or lead screw), or with the use of belts and pulleys. A Rotary AC Servo Motor is an AC type motor that is used with a feedback device Types of Rotary Servo Motor BRUSHLESS DC BRUSH DC AC SERVO is a flattened out Servo Motor where the rotor is on the inside and the coils are on the outside of a moveable u-channel Linear Servo Motor How does the servo work? motor STEPPER SERVO VS Stepper Motor Advantages Longevity Standardized Stability Plug and Play features Safety Excellent Low Speed Torque Repeatability Overload safe High outputEncoderHigh-efficiencyHigh Torque to Inertia Ratio2-3 times continuous power for short periods5-10 times rated torque for short periodsstays cool because the current draw is proportional to loadmaintains usable high speed torque of 90% of NL RPMperforms quietly at high speeds silentlya resonance-free and vibration-free operation Servo Motor Advantages are used #include <Servo.h> Servo myservo; int pos = 0; void setup() { myservo.attach(9); } void loop() { for(pos = 0; pos < 180; pos += 1) { myservo.write(pos); delay(15); } for(pos = 180; pos>=1; pos-=1) { myservo.write(pos); delay(15); } } ARDUINO CODES DEMONSTRATION